I have a friend that has a 21 RayLiner (Sea Ray) Thats cause
he calls my boat a "Sea Tracker"
He converted his Float-On to a roller trailer. he added
two cross members and installed the 12 inch Stoltz rollers
it works as a float on or a winch up trailer. It works great. On good ramps it works as a drive-on and on the shallow ramps he can power winch it up.
Just my 2 cents worth..
See ya, Ken